Category:Gas

Gases are substances that expand to fill their container.

Mechanics

 * Gases will condense into a liquid if cooled past their condensation point.
 * Unlike liquids, gases will always spread to nearby vacuum tiles (unless less than 1 microgram of the gas is present).
 * Elements with a lower density tend to rise above others. In the case of gases with the same density (e.g. Oxygen and Polluted Oxygen), they tend to group together and form different layers.
 * There are heat convection mechanics. The heated gasses will rise upwards, while the colder gasses will be pushed down, the gasses with similar temperatures tend to semi-randomly spread horizontally.
 * Duplicants can breathe Oxygen and Polluted Oxygen.
 * Unless specified, Critters do not breathe, and may survive in any gas as long as other conditions are met.
 * They can also survive in a vacuum.
 * Airborn Critters can fly/float in a vacuum.
 * Gases will be destroyed when exposed to space, unless protected by Drywall.
 * Gas can be stored in a Gas Reservoir.
 * Duplicants can be scalded by hot Gases like Steam. Wearing an Atmo Suit will protect them.

List of Gases
Gases tend to stratify (separate by height) as follows, from lightest to heaviest:

Trivia

 * Real-life oxygen has a "density" (molecular mass) of about 32 g/mol, as there are two oxygen atoms of 16 mass each.

Газы